we'll talk with that expert coming up. and also, the debate that's shaping up to be a huge part of the president's second term. today, the white house standing firm one day after gun enthusiasts nationwide sent d.c. a strong message. stay close. ♪ [ male announcer ] some day, your life will flash before your eyes. make it worth watcng. introducing the 2013 lexus ls. an entirely new pursuit. humans. even when we cross our t's and dot our i's, we still run into problems. namely, other humans. which is why at liberty mutual insurance, auto policies come with new car replacement and accident forgiveness if you qualify. see what else comes standard at libertymutual.com. liberty mutual insurance. responsibility. what's your policy? [ male announcer ] when you wear dentures you may not know it, but your mouth is under attack. food particles infiltrate and bacteria proliferate. ♪ protect your mouth, with fixodent. the adhesive helps create a food seal defense for a clean mouth and kills bacteria for fresh breath. ♪ fixodent,